Circuit-controller



E. A. HALBLEIBAND F. H. BANNER.

CIRCUIT CONTROLLER.

APPLICATION FILED AUG.20. I9IB.

1,322, 13 1 Patented Nov. 18, 1919.

[lumen/Z0115- compensate for wear in the parts.

UNITED STATES PATENT OFFICE.

EDWARD A. HALBLEIB AND FRANK H. BANNER, OF ROCHESTER, NEW YORK, ASSIGNORS TO NORTH. EAST ELECTRIC COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

CIRCUIT-CONTROLLER.

Specification of Letters Patent.

Patented Nov. 18, 1919,

Application filed August 20, 1918. Serial No. 250,732.

United States, residing at Rochester, in the county of Monroe and State of New York, have invented certaln new and useful Improvements in Circuit-Controllers; and we do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to electric circuitcontrollers of the kind in which a circuit is opened and closed by a reciprocating contactrmember inoving into and out of engagement with a relatively stationary contactmember.

In such devices the stationary contactmember is commonly mounted on the end of a screw-threaded shank, so that the contactmember may be conveniently adjusted to The shank is threaded into an upright support, which rises from, and is fixed t0, the baseplate of the device.

In the manufacture of accurately alining the contact-members so that they will meet exactly face-to-face. An object of the present invention is to meet this difficulty, by the provision of a support;

duce a support, for the stationary contactmember, which may be cheaply and easily formed from sheet-metal. P

To the-foregoing ends the lnvention consists in the circuit-controller hereinafter described, as it "is defined in the appended claims. v

In the accompanying drawings Figure 1 is a plan-view 'of a circuit-controller embodyi the present invention. Figs. 2-and 3 are clevations of the support for the sta tionar contact-member. Figs. 4 and 5am elevations of a modified form of the support for the stationary contact-member.

gThe invention. is illustrated, as embodied 66 i i-i circuit-controller such as is fused: in

circuit-controllers as just described, some difficulty is found in shown in- Figs. 4 and 5.

connection with electric ignition-apparatus. Here the movable contact-member 10 is car-. Il8 d by a lever 11 which is oscillated,'by the jolnt action of a cam 12 and a spring 13, so as to move the contact-member 10 into and out of engagement with the stationary contact-member 14.

, The stationary contact-member is mounted ona screw-threaded shank 15, and the present invention resides particularly in the support in which this shank is fixed. This support is formed Wholly of a single piece of'sheet-metal, and, as shown in Figs. 2 and 3, it comprises a flat base-portion 16, and an upright portion 17 bent at a right angle to the base-portion at one of the side-edges of the latter.

The upper end of the upright is bent and perforated to receive the shank 15 of the stationary contact-member.

Thisrupper end may be formed in various ways, but-in any case it is a feature of the invention that it be so formed that theshank 15 shall li either in or parallel to the plane in which the width of the sheet-metal lies in the upright 17 This arrangement has the great advantage that the support is rigid in the direction in which it is subjected to strain, while still sufiiciently flexible in other directions to permit adjustment by bending the metal.

In Figs. 1, 2 and 3 the upper end of the upright is bent at a right angle so asto provide a short horizontal portion 18, and two lugs 19 are bent downwardly from the edges of thecportion 18. These lugs are perforated With alining screw-threaded holes, which receive the shank 15. i

It will be apparent that lateral alinement of the contact-members may be secured by bending theupright 17 laterally, while vertical alinement may be secured by bending the part 18 up or down. If the faces of the contact-members fail to meet squarely this ma be corrected by twisting the upright 17.

, nr alternative form of construction is Here the hole for the reception of the shank 15 is produced by curling over the upper end of the upright to'form a short horizontal sleeve 20, and the the stationary contact-member, by bending a piece of sheet-metal at a right angle so as to produce a horizontal base-member and an upright member, but in such cases the upright member has been perforated to receive directly the shank of the contact-member, so that the upright was necessarily arranged with its width transverse to the shank. In this arrangement the sheet-metal is least adapted to sustain, without yielding, the force due to, the hammering of the movable contact-member against the stationary contact-member, so that if the metal be made thick enough to resist this force adequately, the metal is so rigid that the capacity for convenient adjustment by bending the metal is largely or wholly sacrificed. Inthe construction hereinbefore described, on the other hand, comparatively thin and bendable sheet-metal may be used, consistently with any desired degree of rigidity to strain in a direction longitudinal of the shank 15.

The invention claimed is:

1. In a circuit-controller comprising a movable contact-member, and a stationary contact-member having a screwthreaded shank ;"a support, for the stationarycontactmember, formed integrally of sheet-metal and comprising a base; an upright in which the width of the metal is substantially in a plane parallel with the shank of the stationary contact-member; and a laterally-bent portion, at the upper end of the upright, having a screw-threaded opening for the reception of said shank.

2. A support for the stationary contactmember of a circuit-controller, formed, as in claim 1, in which a portion of the sheetmetal, at the upper end of the upright, extends in the form of two parallel lugs having alining openings to receive the shank of the stationary contact-member.

3. A support for the stationary contact.- member of a circuit-controller, formed, as in claim 1, in which the sheetmetal, at the upper, end of the upright, is bent first laterally to provide a substantially horizontal portion, and then downwardly, from the front and rear edges of the horizontal portion, to provide two lugs, which are perforated to receive the shank of the stationary contact-member.

EDWARD A. HALBLEIB. FRANK H. BANNER. 

